Dan Campbell's time with the Miami Dolphins appears that it will be coming to an end this week. According to a league source, Campbell won't return to the team he led to a 5-7 record in interim head coach this season.

It is unclear if new head coach Adam Gase offered Campbell an opportunity remain on the staff, but sources say the Dolphins' former tight ends coach has other opportunities and will explore them.

The Dolphins will release Campbell from his contract.

Campbell, who began his coaching career as an intern with the Dolphins in 2010, was one of seven candidates formally interviewed to become the organization's ninth full-time head coach. But the selection committee picked Gase, who had been the Chicago Bears' offensive coordinator.

The Dolphins got off to a impressive 2-0 win start under Campbell, but the team struggled the rest of the season, winning three of its final 10 games.

The Dolphins' offense finished 26th in yardage and was ranked 27th in scoring. The offense's consistent slow starts (47 first-quarter points all season) and struggles on third downs (only two teams were worse in 2015) routinely applied pressure to the defense, which finished ranked 25th in yards allowed and 19th in points allowed.

Gase is in the process of assembling his staff, which will reportedly include former NFL receiver Shawn Jefferson, who has been the Titans' receivers coach.

During his 13-year NFL career Jefferson, a former University of Central Florida standout, caught 470 passes for 7,023 yards and 29 touchdowns.

Jefferson coached Detroit's receivers while Gase was on the Lions' staff. He's spent the past three seasons coaching Tennessee's receivers.

Sources also indicated that that Clint Hurtt -- who coached defensive linemen at the University of Miami for six seasons and was a key figure in the Nevin Shapiro scandal -- will join Gase's staff, as will Cowboys assistant Jerome Henderson.

Gase and Hurtt worked together in Chicago, where Hurtt coached the Bears' outside linebackers last season. Hurtt will likely coach the Dolphins' defensive linemen. Hurtt played defensive line for the Hurricanes during the late 1990s and coached that position for UM, Louisville and with the Bears.

Henderson, who played cornerback for the Patriots, Bills, Eagles and Jets during his eight-year NFL career, will coach defensive backs. He's spent the past 10 years coaching defensive backs for the Jets, Browns, and Cowboys.

Cincinnati Bengals assistant Vance Joseph, a defensive backs coach in the NFL since 2005, appears to be the front-runner to serve as Miami's defensive coordinator. However, Fox Sports is reporting that it is possible that Joseph might decide to join Hue Jackson's staff in the same capacity if Jackson is named a head coach of the Browns, 49ers or Giants.

The only member of the Dolphins' coaching staff guaranteed to return is special teams coach Darren Rizzi, who served as Campbell's assistant head coach this season. Rizzi, who joined the Dolphins' staff in 2009, has consistently led one of the NFL's best special teams units.

He is under contract for another season and will be working under the fifth Dolphins head coach in his time here.

Zac Taylor, the Dolphins' quarterback coach, has already moved on, joining the University of Cincinnati as the Bearcats' offensive coordinator. And receiver coach Phil McGeoghan left the Dolphins to take the same position at East Carolina.

Dolphins offensive line coach John Benton has interviewed for the same position with the Indianapolis Colts.